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Study of the semileptonic charm decays D-0 ->pi(-)l(+)nu and D-0 -> K(-)l(+)nu
Besson, David Zeke
Besson, David Zeke
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Abstract
We investigate the decays D-0-->pi(-)l(+)nu and D-0-->K(-)l(+)nu, where l is e or mu, using approximately 7 fb(-1) of data collected with the CLEO III detector. We find R-0=B(D-0-->pi(-)e(+)nu)/B(D-0-->K(-)e(+)nu)=0.082+/-0.006+/-0.005. Fits to the kinematic distributions of the data provide parameters describing the form factor of each mode. Combining the form factor results and R-0 gives |f(+)(pi)(0)|(2)|V-cd|(2)/|f(+)(K)(0)|(2)|V-cs|(2)=0.038(-0.007-0.003)(+0.006+0.005).
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Date
2005-01
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AMERICAN PHYSICAL SOC
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GetPDFServlet13.pdf
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Huang, GS, Miller, DH, et al. Study of the semileptonic charm decays D-0 ->pi(-)l(+)nu and D-0 -> K(-)l(+)nu. PHYSICAL REVIEW LETTERS. January 2005. 94(1)